'How do you unit test your code without mocks?' I strongly recommend reading "Unit Testing: Principles, Practices, and Patterns" by Vladimir Khorikov. That's

'How do you unit test your code without mocks?' I strongly recommend reading "Unit Testing: Principles, Practices, and Patterns" by Vladimir Khorikov. That's going to answer your question and will unveil a whole world of testing without mocking (not that it's better or worse than with mocks). It might be a single best book about unit testing in general.